Rocky Elsom may have played his last game for the Brumbies after he was ruled out for the rest of the Super Rugby season with an ankle injury.

The Wallabies skipper will miss the ACT franchise's last four games after being sidelined for
four to six weeks with a syndesmosis injury picked up against Western Force last weekend.

The off-contract flanker is expected to leave at the end of the season, having only just returned to action following a six-month lay-off with a hamstring injury.

"He just needs to get himself ready for the World Cup now," Brumbies coach Tony Rea said. "It's just disappointing for him - he's worked so hard to get back and he only got himself back for one [game]."

In better news, Wallaby Peter Kimlin has re-signed for another two years while youngster Cam Crawford will step up from the Brumbies Academy. Crawford has also signed a two-year deal meaning the pair will remain in the nation's capital until at least the end of 2013.

"There was a bit of interest from other clubs but we are looking to build here in Canberra and it's exciting to be a part of that process," Kimlin said. "I'm from the ACT and it's been a pleasure to have played all my Super Rugby here, I'm really looking forward to the next couple of years."